386.The lesser sac (omental bursa) is directly continuous with which of
the following recesses or spaces?
a. Infracolic compartment
b. Left colic gutter
c. Left subphrenic recess
d. Right subphrenic space
e. Hepatorenal recess
387.Mucosal necrosis of the rectum usually will notresult from occlusion
of the inferior mesenteric artery for which of the following reasons?
a. Arterial supply to the rectum is from anastomotic connections from the supe-
rior mesenteric artery
b. Arterial supply to the rectum is from the left colic artery with anastomoses to
branches of the internal iliac artery
c. The inferior mesenteric artery does not supply the rectum
d. A principal branch of the external iliac artery is a major supplier to the rectum
e. The middle rectal artery, a branch of the internal iliac artery, supplies the
rectum
388.Sympathectomy may occasionally relieve intractable pain of visceral
origin, in as much as visceral afferent pain fibers run along the sympathetic
pathways in the abdomen. The autonomic control of peristalsis in the
descending colon should notbe affected by bilateral lumbar sympathec-
tomy for which of the following reasons?
a. The descending colon is controlled chiefly by parasympathetic innervation
from the pelvic splanchnic nerves
b. The descending colon receives its parasympathetic innervation from the vagus
nerve
c. The descending colon receives its sympathetic innervation from thoracic
splanchnic nerves
d. Lumbar splanchnics from L1, L2, and L3 only innervate the pelvic viscera via
the hypogastric nerve
e. Only presynaptic sympathetic fibers have been severed
500 Anatomy, Histology, and Cell Biology